//////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2008-2010, Shane J. M. Liesegang
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright 
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright 
//       notice, this list of conditions and the following disclaimer in the 
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the copyright holder nor the names of any 
//       contributors may be used to endorse or promote products derived from 
//       this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
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//////////////////////////////////////////////////////////////////////////////

#include "GotoTargetAIEvent.h"
#include "Sentient.h"
#include "PathFinder.h"
#include "SpatialGraph.h"
#include "TagCollection.h"

#include "../_Box2d/Box2D.h"

GotoTargetAIEvent* GotoTargetAIEvent::Initialize(const String& targetTag, float moveSpeed, float arrivalDist)
{
	_targetTag = targetTag;
	GotoAIEvent::Initialize(Vector2::Zero, moveSpeed, arrivalDist);
	return this;
}

void GotoTargetAIEvent::Update(float dt)
{
	ActorSet taggedActors = theTagList.GetObjectsTagged(_targetTag);
	for( ActorSet::iterator itr = taggedActors.begin(); itr != taggedActors.end(); itr++ )
	{
		Actor* pTargetActor = (*itr);
		if(theSpatialGraph.IsInPathableSpace(pTargetActor->GetPosition()))
		{
			_destination = pTargetActor->GetPosition();
			GotoAIEvent::Update(dt);
			return;
		}
	}

	// otherwise, we failed
	_moveFailed = true;
	IssueCallback();

}
